The machine spirits were the only part that felt "too magical" to me, but now we're well on our way. The Omnissiah's blessings be upon us.
(Let's just skip servitors. Those give me the heebie-jeebies.)
40k lore is like South Park: either extremely dumb or unexpectedly insightful.
The Cult Mechanicus' raison d'etre is the realization that religion persists across time and space scales that knowledge alone does not. Thus, by making a religion of knowledge you better guarantee its preservation.
Unfortunately, once you divorce doctrine and practice from true understanding, you lose the ability to innovate and cause the occasional holy schism/war.
PS: 20 years ago I told a friend that "software archaeologist" would be a career by the time I die. Should have put money on it.
We'd like to think this could turn into the voice interface on Star Trek.
But
It can go the other way also, 'incantations', 'spell books'. Speaking to the void to produce magic.
"The CFO, donned the purple robes, and spoke the spell of Increased Productivity, and then waved his hands symbolizing the reduction in work force labor. And behold the new ERP/SAP App was produced from the void. But it was corrupted by dark magic, and the ERP/SAP App swallowed him and he was digested. The workforce that remained rejoiced and danced"